AD 33-855-4
Page 53
CELL
TERMINAL
BLOCK ASSEMBLY
EXTERNAL
HARNESS
TO
TRIP
UNIT
DISCONNECT
PLUG
DG
Gour
Grru
sour
srr.r
Legend:
TB1-1 DG
-
Digital Ground
TB1-4
Seul
-
Short Delay Out
TB1-5 StN
-
Short Delay
ln
DO NOT GROUND
breaker
ZONE 3
ZONE 3
ALTERNATE
-
where time delay as
pre-sei
is required.
@
Twist together and run separate
from
power
eables. #14 or
#16 copper wire
is required
per
UL-1053.
Length
of
run is
not crilical,
@
A maximum
of 20 breakers may be connected
in
parallel
in
zone 3 when employed
without self-interlock,
@
A maximum of 20 breakers
may be connected in
parallel
in
-
zone 3
when employed with sell-interlocking
by adding
signal diodes
Oype
1N4004 or equivaleni), as shown
in
zone 3 alternate.
@
I maximum of 5 breakers
may
be
connecled in
parallel
in
-
zone 3
when employed with selt-interlock.
c)
F
c0
F
ro
co
F
<r
IDIGITRIP
I nvs
?
Hlvl)
irRrP
.<]
uNrT
BRANCH
Fig. 10-3 Connection
Schematics
for Multiple Circuit Breakers
Effective 9/01
E:T.il
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